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1.
韩青 《体育成人教育学刊》2015,(3):67-69,83
对奥运会艺术体操集体项目队伍和全国艺术体操冠军赛集体项目队伍成套动作中的协作动作进行分析,结果表明:协作形式的多样化、动作的超难化、抛接之间的复杂化、队形的多变化,是目前艺术体操集体项目协作动作的主要发展趋势。 相似文献
2.
关于抛接器械稳定性的探讨 总被引：2，自引：0，他引：2
本文就近几年国内外重大艺术体操竞赛中关于抛接器械的典型判例进行分析研究,论证抛接器械稳定性是影响我国艺术体操竞赛成绩的重要因素之一,并结合世界艺术体操强国的训练经验,提出加强我国艺术体操抛接器械稳定性的建议。 相似文献
3.
对艺术体操棒操中单手前抛双棒动作进行力学分析,旨在提高抛接技术的准确性和稳定性,把握抛接动作的顺序、方向、用力时间和节奏,以便更好地完成抛接动作。 相似文献
4.
一、前言现在世界止艺术体操越来越向高难度、高质量,编排新颖的方向发展,特别是器械的抛接应用的更为普遍。从第十一届世界艺术体操锦标赛的个人藤圈项目中可以看到,每套动作的抛接都占很大的比重,每个运动员的抛接次数都在十次以上。 相似文献
5.
程立娥 《西安体育学院学报》1988,(3)
抛射体运动是曲线运动中比较重要的一种运动形式,在艺术体操项目中运用十分普遍。从国内外一些比赛中可以看到,抛射器械无论在抛的次数、高度、距离、形式以及接的方法上均有了很大的发展,抛和接的动作结合徒手难度动作,不仅是构成各项器械难度的重要部分外,而且往往作为编排成套动作的高潮中心和集体项目中交换器械的最佳形式。 相似文献
6.
运用艺术体操圈器械对不同训练程度者及不同级别的运动员进行测试,发现有训练者与无训练者之间的抛接控制能力有着明显的差异;不同训练水平的运动员对于抛接控制能力也具有一定的差异性,训练水平越高,准确性越高;本体感觉能力具有个体差异性,其既受后天运动训练的影响作用,也受到个人先天因素的作用制约;艺术体操运动员上肢本体感觉能力的强弱,可以作为艺术体操运动员的选材与能力评定的参考指标。为今后选拔和训练艺术体操运动员提供科学准确的参考依据。 相似文献
7.
运用文献资料法和逻辑分析法,对我国艺术体操优秀人才的流动特征进行研究,结果表明:我国优秀艺术体操人才流动性存在着垂直流动的典型特征;优秀艺术体操人才流动机制尚不成熟是制约我国艺术体操竞技水平发展的重要因素;与其他竞技项目相比艺术体操人才国际流动和水平流动不足。本文对此提出针对性的合理化建议,以期促进我国艺术体操运动长远快速发展。 相似文献
8.
试论我国艺术体操集体项目的现状及发展对策 总被引：7，自引：0，他引：7
在当今世界艺术体操竞争日益激烈，对运动员要求日益严格的新形式下，我国艺术体操队伍欲跻入世界列强之林，只有发展集体项目。本文分析了新世纪艺术体操运动的发展趋势，并对我国艺术体操集体项目现状和发展对策进行了探讨。 相似文献
9.
10.
运动员之间的合作，是艺术体操集体项目的主题和充分体现。章采用比赛现场与录像观察、献研究、访问调查等方法，对25届世锦赛集体前8名及2002年中国联通杯艺术体操比赛集体项目中有关运动员之间的合作的相关数据做分析，结果表明，我国艺术体操集体项目在运动员之间的合作方面，得分偏低；类型偏少；动作价值不高；完成质量不稳定，失误比率偏高。这说明我国艺术体操集体项目在运动员之间合作的技术上与世界先进水平存在一定的差距。 相似文献
11.
《European Journal of Sport Science》2013,13(6):373-378
Abstract Throwing performance is vital within the sport of cricket. However, little published evidence exists regarding methods to improve throwing velocity and/or accuracy in any cricket-playing population. This study, therefore, assessed the efficacy of progressive velocity throwing training on throwing velocity and accuracy in a cricket-specific test. Eighteen sub-elite male cricket players were assessed for maximal throwing velocity and throwing accuracy at four different throwing velocities relative to maximal throwing velocity. The participants were randomly assigned to either an intervention (n=9) or control (n=9) group. Both groups performed usual pre-season activities for 8 weeks, during which the intervention group performed two additional specific throwing training sessions per week. Maximal throwing velocity was re-assessed at 4 weeks and the progressive velocity throwing programme was adjusted accordingly. The 8-week progressive velocity throwing training significantly increased peak and mean maximal throwing velocity (P = 0.01). Absolute changes in peak and mean maximal throwing velocity were negatively and significantly correlated with initial maximal throwing velocity at 4 weeks (r=?0.805, P = 0.01 and r=?0.806, P = 0.01 respectively) but not at 8 weeks. No significant difference was observed in accuracy for either group at any time. This is the first published study to describe the effectiveness of a progressive velocity throwing training programme on throwing performance in a group of sub-elite cricket players. The addition of two specific throwing training sessions per week can increase maximal throwing velocity without detriment to throwing accuracy. 相似文献
12.
《European Journal of Sport Science》2013,13(4):231-243
Abstract Release velocity and accuracy are vital components of throwing performance. However, there is no published research on these parameters for throwing in cricket. In this study, we investigated the throwing performance of 110 cricket players from six different populations: elite senior males, elite under-19 junior males, elite under-17 junior males, elite senior females, elite under-19 junior females, and sub-elite senior males. Based on a specifically designed cricket throwing test, participants were assessed for (1) maximal throwing velocity and (2) throwing accuracy at maximal velocity and at three sub-maximal velocities. Elite senior males exhibited the highest peak and mean maximal throwing velocities (P≤0.001). Furthermore, the groups of males had significantly higher peak and mean maximal throwing velocities than the groups of females (P≤0.01). A speed–accuracy trade-off existed such that all groups demonstrated improved accuracy scores at velocities between 75% and 85% maximal throwing velocity compared with 50% maximal throwing velocity and 100% perceived maximal exertion. The results indicate that sex, training experience (years training), and training volume (training time per week) may contribute to throwing performance in cricket players. Further research should focus on understanding the mechanisms behind the observed differences between these groups. This is the first study to describe the inherent throwing profiles of different cricket playing populations. Potentially, we have identified stimulus material for future training developments. 相似文献
13.
In the present study, an attempt was made to examine the nature and persistence of bilateral transfer of a throwing skill for a large sample of male and female children. One hundred sixty children ages 6, 8, 10, and 12 years were randomly assigned to either an experimental or control group with an equal number of boys and girls in each group. The experiment lasted 2 days and consisted of a pretest, a practice phase, an immediate transfer test, and a delayed transfer test. On the pretest, each participant performed 10 trials of a novel one-hand throwing task. Following the pretest, participants in the experimental group practiced the skill with the hand opposite the one used during the pretest until they had successfully reached a designated criterion for their age. Participants in the control group performed a balancing activity. Following the practice phase, all participants performed immediate (10 min later) and delayed (24 hr later) transfer tests under the same conditions as the pretest. The results revealed no group differences on the pretest but significantly higher throwing accuracy for the experimental group than the control group on both transfer tests. In addition, boys' throwing accuracy was significantly superior to the girls. It was concluded that bilateral transfer of throwing accuracy can be both a temporary and relatively persistent phenomenon for children and the superior throwing accuracy for boys is consistent with similar gender differences in throwing distance and throwing velocity (Thomas & French, 1985). 相似文献
14.
双手头上抛掷实心球技术动作实质上是投掷标枪技术动作的最后一部分,即从＂满弓＂到器械出手,属于鞭打用力过程。双手头上抛掷实心球错误动作的产生与鞭打动作正确与否有很大关系。运用鞭打动作原理解析抛掷实心球的错误动作,便于学生理解。 相似文献
15.
Abstract This study examined the effects of knowledge of results (KR) delay and subjective estimation of movement form on the acquisition and retention of a motor skill. During acquisition, four groups of participants performed 60 trials of a throwing accuracy task under the following conditions: (a) immediate KR, (b) delayed KR, (c) immediate KR + form estimation, and (d) delayed KR + form estimation. Retention tests of throwing accuracy and outcome error estimation in the absence of visual KR were administered 5 min and 24 hours following acquisition. Throwing accuracy was significantly higher during acquisition but significantly lower during retention for immediate-KR participants than for delayed-KR participants. However, participants who estimated their movement form during acquisition produced significantly higher throwing accuracy and lower estimation error during retention than those who did not. 相似文献
16.
William F. Straub 《Research quarterly for exercise and sport》2013,84(2):370-379
Abstract The study had two aspects: To determine the effect of warm-up throwing drills (employing “systematic overload”) upon subsequent speed and accuracy of the overarm throw in subjects with widely differing maximum velocities, and to determine the effect of a 6-week overload training (in which the speed and accuracy emphases were systematically varied) upon the speed and accuracy of the overarm throw. The 60 subjects in the short-range phase of the study, examining the immediate effect of overload warm-up, received experimental treatments consisting of 10-oz., 15-oz., and regulation ball warm-up. The 48 subjects who participated in the long-range or training phase of the study received progressive overload in conjunction with various speed and/or accuracy emphases. Computer services for this study were granted by the University of Wisconsin Research Committee through funds provided by the National Science Foundation and the Wisconsin Alumni Research Foundation. The results of the study indicated that performance differences in throwing speed and accuracy, of high and low velocity performers that take place immediately following overload warm-up were statistically not significant. The initial speed and/or accuracy emphasis that was given appeared to have little effect on subsequent performance. The results provided no evidence that the use of a weighted ball resulted in immediate or long-range improvements in throwing speed or in throwing accuracy. 相似文献
17.
我国女子链球运动水平现状的分析 总被引：1，自引：1，他引：0
康利则 《西安体育学院学报》2000,17(3):44-46
通过对第四届全国城运会女子掷链球比赛的现场调查访问与测试 ,从参赛者的年龄、身体形态、训练年限以及投掷技术形式和成绩等方面分析了我国女子掷链球运动水平的现状与发展趋势。其结果可对女子掷链球这一新项目今后的训练和比赛产生积极的影响。 相似文献
18.
《European Journal of Sport Science》2013,13(2):149-154
Abstract This study examines the differences between expert and novice team-handball players in their sensitivity to instructions that emphasize speed or precision requirements. The effects of instructions on throwing speed and accuracy of a handball over arm throw and the speed–accuracy trade-off in experts and novices is revisited. An expert group (n=18) with a training experience of more than 10 years, and a novice group (n=24) without experience in team-handball, took part in the study. The participants were asked to throw to targets located at different positions following instructions emphasizing accuracy and instructions emphasizing accuracy and speed. Throwing speed was measured with a speed gun radar, and the centre of the ball when the ball entered the goal was digitalized for accuracy. Under these experimental conditions, the novice group was sensitive to instructions for reducing throwing speed and increasing accuracy when instructions emphasized accuracy. The expert group increased throwing speed when the instructions emphasized speed, but was not less accurate. The results indicate that it is advisable for experts’ speed to be close to maximum speed since it does not seem to have a significant effect on accuracy of the throw. 相似文献
19.
本文通过对我国优秀标枪运动员和世界优秀标枪运动员投掷步技术的分析与对比,结果发现：我国男子标枪运动员投掷步第1、2步躯干后倾角过大,第2～3步躯干后倾角变化幅度相对较小,以至于交叉步的动作速度及幅度受到影响;女子标枪运动员交叉步下肢前移幅度过小,影响躯干相关肌群收缩;我国男女运动员投掷步第4步都存在躯干后倾角下降较大,左膝弯屈角较小,左侧支撑无力的共性特征。 相似文献
20.
Maria Stella Valle Luciano Lombardo Matteo Cioni 《European Journal of Sport Science》2018,18(9):1217-1225
Learning precision ball throwing was mostly studied to explore the early rapid improvement of accuracy, with poor attention on possible adaptive processes occurring later when the rate of improvement is reduced. Here, we tried to demonstrate that the strategy to select angle, speed and height at ball release can be managed during the learning periods following the performance stabilization. To this aim, we used a multivariate linear model with angle, speed and height as predictors of changes in accuracy. Participants performed underarm throws of a tennis ball to hit a target on the floor, 3.42 m away. Two training sessions (S1, S2) and one retention test were executed. Performance accuracy increased over the S1 and stabilized during the S2, with a rate of changes along the throwing axis slower than along the orthogonal axis. However, both the axes contributed to the performance changes over the learning and consolidation time. A stable relationship between the accuracy and the release parameters was observed only during S2, with a good fraction of the performance variance explained by the combination of speed and height. All the variations were maintained during the retention test. Overall, accuracy improvements and reduction in throwing complexity at the ball release followed separate timing over the course of learning and consolidation. 相似文献